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[v2,14/38] fbdev/ep93xx-fb: Do not assign to struct fb_info.dev

Message ID 20230612141352.29939-15-tzimmermann@suse.de (mailing list archive)
State Superseded
Headers show
Series fbdev: Make userspace interfaces optional | expand

Commit Message

Thomas Zimmermann June 12, 2023, 2:07 p.m. UTC 
Do not assing the Linux device to struct fb_info.dev. The call to
register_framebuffer() initializes the field to the fbdev device.
Drivers should not override its value.

Fixes a bug where the driver incorrectly decreases the hardware
device's reference counter and leaks the fbdev device.

v2:
	* add Fixes tag (Dan)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 88017bda96a5 ("ep93xx video driver")
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Cc: <stable@vger.kernel.org> # v2.6.32+
---
 drivers/video/fbdev/ep93xx-fb.c | 1 -
 1 file changed, 1 deletion(-)
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Patch

diff --git a/drivers/video/fbdev/ep93xx-fb.c b/drivers/video/fbdev/ep93xx-fb.c
index f6cd200fe50ff..37309f9dbe828 100644
--- a/drivers/video/fbdev/ep93xx-fb.c
+++ b/drivers/video/fbdev/ep93xx-fb.c
@@ -474,7 +474,6 @@  static int ep93xxfb_probe(struct platform_device *pdev)
 	if (!info)
 		return -ENOMEM;
 
-	info->dev = &pdev->dev;
 	platform_set_drvdata(pdev, info);
 	fbi = info->par;
 	fbi->mach_info = mach_info;